Steam-radiator.



2 SHEETS-SHEET 1.

PATENTED OCT. 22. 1907.

l W. ANDREWS. STEAM RAMATOR.

APPLICATION FILED APR.8,1907.

, PATENTED OCT. 22, 1907.'

` W. ANDREWS. STEAM RADIATOR.

APPLICATION FILED APR. a. 1907. A

2 SHEETS-SHEET 2.

All!

UNITED STATES WILLIAM ANDREWS, or NEW YoaK, N. Y.

STE AMV-RADIATOR.

Specification of Letters Patent.

Patented Oct. 22, 1907.'

Application iiled April 8, 1907. Serial No. 366,905.

To all whom 'it may concern:

Be it known that I, WILLIAM ANDREWS, a citizen of the United States, residing at New York city, New York, have invented certain new and useful Improvements in Steam-Radiators, of which the following is a clear, full, and exact description.

The object of this invention is to provide a simple, efcient and cheap adjustable steam radiator. In attaining this obj ect I have aimed to utilize such radiators as are already in use, to enable ready and economical change to be made in them as will be apparent hereinafter.

In securing heat variance or adjustment I make use of air which I utilize to subserve my purpose and secure the desired results.

Broadly stated it is my aim to fill with the air laden steam those radiator units, which I do not Wish heated toany appreciable degree. The steam condenses and drains off as water, the air accumulates in 'those radiator units until they become comparatively full oi air and relatively cool. To accomplish this-it will be obvious that it is essential to keep open communication at all times between 'the radiator units so that the air contained in water oi condensation may accumulate for some little time after making the necessary adjustments of the valve means for effecting the variation of heat.

Succinctly stated, I provid e a normal lsteam outlet and a steam inlet and an auxiliary pipe to an intremediate portion of the radiator, all in the lower part of the radiator to allow for the drainage of water of condensation, and I provide valve means, preferably in the form of a three-way valve, for closing the normal and auxiliary outlets, or closing either one and opening the other. I also prefer to provide a pet cock or controllable air vent at the top of the radiator units, generally vertically arranged above the auxiliary outlet for the escape of collected air when it is desired to run with all the heating surface in commission. I also prefer to provide a visual indicator to show the position of the three-way adjustment valve.

The scope of my invention will be pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of a Grifiing radiator with my invention applied thereto; Fig. 2 is a longitudinal central sectional elevation thereof; Fig. 3 is a side elevation oi my invention applied to a type of a modern sectional radiator; Fig. 4 is a longitudinal central sectional elevation thereof; Fig. 5 is a plan oi the preferred form of valve and indicator; Fig. 6 is a vertical section of the valve; and Fig. 7 is a transverse section of the valve on line 7*? Fig. o.

As illustrated in the drawings, particularly in Figs. l and 2, the radiator is composed of a lower header or box l into 'which are screwed vertical radiator units 2, 3 and 4, all of the usual construction. An inlet valve 5 of the ordinary globe type is provided at one end of the header l, while a normal outlet pipe 6 leads to a three-way valve 7 at the opposite end. An auxiliary pipe or connection 8 is tapped into the header at any intermediate point 'depending upon the proportion of the radiator units it may be desirable to cut off. The pipe Salso leads to the three-way valve 7. At the top of the radiator unit 3 I prefer to locate a pet cock 9.

The three-way cock 7, in my preferred form, consists of a casing l0 having a tapered core connecting at its bottom with an outlet pipe 12 and having ports 13 and 14 for thenormal outlet pipe 6 and the auxiliary pipe 8, respectively, and having a screw cap l5 centrally bored for the spindle 1G of a tapered valve 17. The spindle 16 is surmounted by a handle 18, 'and the valve casing l0 is provided with a scale or indicator 19 marked On, Aux. or Off,or similarly marked. The tapered valve or plug 17 is open at the bottom'and closed at the top and provided with ports 20 and 21 in its side wall so located that all pipes entering the casing may either be shut off from each other, or the normal outlet 7 connected with outlet 12 and auxiliary pipe 8 cut off, or the normal outlet cut off and the auxiliary pipe 8 connected with outlet 12.

The radiator of Figs. 3 and 4 is composed of detachable sections 22 joined by threaded bushings 23. The central section or unit 2.4 is cast with a boss 25 at its lower end to receive the threaded end of the coupling 26 ofthe pipe 8. The three-way valve, inlet and pet cock are all of the construction shown in Figs. l and 2 and operate in the manner described therein.

In operation the three-Way valve is turned to On, l

the inlet valve opened and steam readily mounts in all the radiator units, being aided, if necessary, by opening the pet cock. When it is desired to moderate the radiated heat the valve is turned to aux when the steam will still iiow to the bottom of all the radiator units but will leave the radiator at its intermediate point circulating from inlet to the intermediatepoint. The steam in and under radiator units 4 will condense, leave air in and under the radiator units which not being in the path of circulation do not drain ofi with the heavier water. Fresh steam with its air takes the place of the water and condensing leaves more air, and so on until the radiator units 4 contain substantially air alone and hence cease to give off any material heat, While the few coils 2 are still active to a maximum extent, ior the air in them is kept hot, and mingled with the steam, passes off through circulation.

I claim as my invention:

1. A radiator comprising heating radiator' units, a drainage chamber at the base of the units, unobstructed throughout and at all times serving to keep communication open between the units, a steam inlet, and a normal steam outlet to the' radiator and an intermediate outlet and means adapted to close the normal outlet and open. the intel-mediate outlet.

Z. A radiator comprising heating radiator units, a

drainage' chamber at the base of the units, unobstructed throughout and at all times serving to keep communica- -tien'open between the units, a steam inlet, and a normal steam outlet to the radiator and an intermediate outlet and means adapted to close the normal outlet and open 10 -the intermediate outlet, said means comprising a single valve, piping from the normal outlet and piping from the intermediate outlet thereto.

Signed at New York city this 6th day of April 1907.

' WILLIAM ANDREWS.

Witnesses MARGARET M. GOOLD, F. WARREN WRIGHT. 

